Modern technology confronts ancient ritual in this profound and moving documentary. Teenager Chris Apassingok and his Yupik family live in Gambell, Alaska, a tiny village on St. Lawrence island in the Bering Sea. Life there differs vastly from the rest of the US – for one, hunting whales holds the key to the islanders’ survival. Conflict emerges after Chris kills a whale that will feed Gambell’s townspeople for months – and news of the successful hunt reaches the outside world. Facebook trolls and animal-rights activists attack from afar, captured in Pete Chelkowski and environmental journalist Jim Wickens’ captivating film that delves into environmental issues, cultural and generational challenges, and cyberspace hysteria

• Documentary